Wrong board def in pins.h
@ -151,7 +151,7 @@
#include "pins_AJ4P.h"
#elif MB(MKS_13)
#include "pins_MKS_13.h"
#elif MB(BOARD_SAINSMART_2IN1)
#elif MB(SAINSMART_2IN1)
#include "pins_SAINSMART_2IN1.h"
#else
#error Unknown MOTHERBOARD value set in Configuration.h